史上最小 QR Code 面積僅 1.977 平方微米 須借電子顯微鏡才能掃描
https://unwire.hk/2026/03/07/smallest-nano-qr-code-electron-microscope/life-tech/?utm_source=rss&utm_medium=rss&utm_campaign=smallest-nano-qr-code-electron-microscope
#生活科技 #電子支付 #Cerabyte #qr_code #TU_Wien
#GuinnessWorldRecord broken! 🏆 #TUWien & #Cerabyte create the world's smallest #QRCode pixels at just 49nm – smaller than bacteria! Etched into a thin #ceramic layer, readable only with an electron microscope 🔬
📐 Total size: just 1.98 square micrometers – beating the previous record by 63%
🔬 Pixel size: 49 nanometers – smaller than an average bacterium, invisible to optical microscopes
🧵 👇
💾 Storage density: a single-layer A4-sized film can hold over 2 terabytes of data using this technology
🏺 Material: etched into a thin #ceramic layer – claimed to last indefinitely with no energy or cooling required
🤝 Behind the record: collaboration between TU Wien (Institute of Materials Science) and #Cerabyte – a #startup for ceramic #datastorage
💡 Sweet spot: not the smallest possible code, but the optimal balance of miniaturization, stability & readability
One of my projects (that I actually get paid for in my day job) is a collaboration with #Austrian #startup #Cerabyte who are developing a new #archival #storage #technology using femtosecond lasers to write data onto ceramic glass film.
They just got into the #Guinness Book of #WorldRecords for creating the world's smallest #QRcode (1.98 square micrometres).
https://www.tuwien.at/tu-wien/aktuelles/news/news/weltrekord-der-kleinste-qr-code-der-welt
AWS are all out of branded socks, but a colleague did show me this long-term ceramic data-storage medium